Though

Where did you come from?
Why have you crept into my daily lexicon?
I don’t remember using you,
until only recently,
you’ve been born into my vocabulary.
You’ve butt in and taken but’s place
But not completely, you see
The problem is that when I look back
I can remove you
And it makes no difference
to my words or message.
So why are you there?
and where did you come from?
I don’t know, though it’s good to see you.